乳糖肉汤

Sara needed to see the doctor. She had an upset stomach. She felt bloated, and needed to pass gas every minute or so. This was terrible. She couldnt go anywhere in public. Her friends told her it was because she had moved to America. The air, water,

发表于:2018-12-06 / 阅读(204) / 评论(0) 分类 365个英语简短小故事

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The ability to digest milk as adults, and as infants, actually, is due to the expression of an enzyme called lactase. That's the University of Pennsylvania's Sarah Tishk

发表于:2018-12-24 / 阅读(183) / 评论(0) 分类 Scientific American(二)月

This is Scientific American 60 Seconds. I'm Cynthia Graber. This'll just take a minute. In Europe and the near east, people went from being mobile hunter gathers to more settled agriculture way of life. But in Africa, no matters domesticated animals

发表于:2018-12-24 / 阅读(222) / 评论(0) 分类 Scientific American(六)月

At the same time, methanogens can use hydrogen and carbon dioxide produced by other bacteria to generate methane, 同时,产甲烷菌可以使用其他细菌产出的氢和二氧化碳以生成甲烷, which can reduce the total volume of gas by u

发表于:2019-01-17 / 阅读(218) / 评论(0) 分类 TED演讲教育篇

you shouldnt quit drinking milk. It is a good source of calcium after all.what you should do is stop consuming dairy on an empty stomach period. On an empty stomach, dairy moves faster through your intestines and is more likely to cause you intoleran

发表于:2019-01-26 / 阅读(176) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
accounts control area
agger r.
aluminium chlorohydroxy allantoinate
annoyable
Arroyo Grande
artificially damped balance
awarded
bare-root seedling transplanter
bindin
body of lathe bed
borreliotal disease
braking gear
butt lover
canal drying machine
chattergee
checked effect
clean cut system
coefficient of elasticity
collection
common mode failures
common wormwoods
compensation range
contemptibles
coolieism
counting mechanism
Cuffley
cum chugger
dbfasts
definiens
defrost(ing)
deputyship
dimethylanthranilate
direct-pull
docus
dunnage
enamel dysplasia
end of word character
endless cable
ergotic
erythralosmine
expansionists
fractional portion
germfree isolator
glochidion hongkongense mull.-arg.
glucosylsulfanilamide
gnetum gnemons
gtos
helicopter muffler
Hermigua
Hippophae gyantsensis
House of lords Appointments Commission
Hume gold flow equilibration mechanism
hush kits
hystrichospheres
in your sights
interpellators
Judaeophobia
kolpos
langue and parole
loose gear
low temperature breakdown
Lyckebyån
male friction cone
mean solar unit
metratome
metric topology
neate
neutron collimator
noncontiguous data structure
nortada
octavating
of-flyght
offer subject to market fluctuation
panicolid type
pearl oyster
pentose
phthalofyne
physical inventory control
profusum
prosterman
Sarras
scabiophobia
schemochrome
scoureth
silicon monolithic integrated circuit
sonofusion
sterically hindered phenol
stitchwort
synthetic language
thermal sintering
thickening growth
topsoil
triplinerve
Typha elephantina
U-tube steam generator
U/PUN
valid name
vegetable bed
Velardeňa
Violaceae
waste lye
yuast